edit(After I ranted I realized I wasn't addressing your exact idea, but had extrapolated to "world govt" which you didn't say. I'm leaving it though because it is related and relevant. Response to your actual post is at the end.)

Humans were never meant to and never will be able to have enough common ground to agree on world government.

No matter how much they deny race differences, sex differences, culture differences, geography differences, and everything else... those differences exist nonetheless, and for good reasons.

You can't take hundreds of thousands of years of evolution and replace it with words on paper (or hard drive).

If they can't properly manage a single city, state, or country, how can anyone properly manage a planet?

It is all going to crash before we can go any further, because too many workarounds have been used instead of fixing the underlying problems.

The duct tape will not hold any more, and the frame is bent.


We are at our best when we live modularly and naturally and interactions occur only when both sides wish it and agree to the terms. Leaders/Representatives acting on behalf of a group are only effective when they actually represent the realistic expectations of their constituents. I say realistic expectations to distinguish from majority vote and mob rule, which can often want something that is unattainable and ill advised, due to their lack of education or ethics.

None of the above is even possible unless the constituents possess true knowledge of their environment and abilities and a sense of self responsibility and socially positive ethics. This was historically provided via Religion. It may not have been 100% accurate knowledge, but it was consistent and widely accepted and at least had a system of ethics that were generally positive socially. (exceptions being ones that subvert groups based on race/sex/etc) but for sake of example lets use the 10 commandents, which gave the basic no murder, rape, theft guidelines that are keystones of society.

But today --- Religion is only recognized for non Christians, and most of those are racist and sexist and socially negative in practice. Where Christianity is accepted or pretended to be a guide, it has been bastardized and bent to serve the purposes of the few, not the many.
Even Science, "knowledge" itself, has been coopted by political operatives and corporate demons who obscure real truth and substitute narrative fueling garbage.

So, no. No global governance of any kind will work.

Everyone must start and finish locally, then connect with adjacent regions to form a new social network of modular stable independent "states" that share ideas and resources as desired but never impose expectations.

That was the original idea of the States. To be separate but equal labs for experimentation, so that the successes could be shared as examples and the failures as warnings to other states contemplating similar actions.

If you try to homogenize the planet, there is no control group.


Now all that said---

If you stick to the concept of a new Constitution that exists solely to identify those things which no govt may dictate and that remain the sole responsibility and right of every human individual. (like no forced vaccines, free speech, etc) I am on board with that and think it is a good idea.